While the br-16 is no doubt an excellent weapon (capable of 1 burst OS Aura/Proxy/Kira/Sparks, second highest dps . . .), I feel it doesn’t fit well with Fragger core role and gameplay.
The main problem is that the weapon loses accuracy very quickly when you move, and/or when you get shot. While this not really an issue with dedicated marksmen fire support like Arty or Kira since you spend most of the time doing long range shooting avoiding ennemy fire, with Fragger in the other hand you NEED to constantly be in front line to, well, do your Fragger job : use your grenades and mow down ennemy team. So, you’re always under ennemy fire, getting shot at, at the point using the br-16 is just unreliable. Also to begin with, having only 9 burst of fire before reload is very punishing at close range if you miss just once.
So I think it would be suitable to swap br-16 for Timik 47 in the 3 br-16 Fragger’s loadouts.